I was opening geo tagged images in JOSM (version 17084) when my PC suddenly shut down for unknown reason. I rebooted and restarted JOSM, it resorted to the barebone JOSM as if it is installed for the first time. Gone are my shortcuts, plugins, offsets etc. Digging through .josm directory, I found that josm preference.xml backup file to be zero length and same date stamp as the new preference.xml file, meaning there was no backup from previous use. On a side note, the older non xml preference file from 2012 is still there. The plugin directory does exist with all the downloaded plugins that I used before. So it seems nothing else changed.
So, is it JOSM that forgets to create the backup file, or is it my OS that wipe it out?
I’m on Opensuse 15.1, KDE, AMD FX6300. 12Gig RAM. JOSM memory set at 6GB.